I'm minding my own business, trying to do some school work, when in comes man's best friend. I tell him to get out, and even yell to my boyfriend to come get him out so I can be left in peace. Then I notice that he has a boner...and wow, it's the biggest cock I've ever seen! I can't help but think about how good it might feel to suck on it. So I call him up onto the bed and take his huge doggy dick down my throat in a couple different positions, taking it as far as I can, sucking and teasing the knot with my tongue, until he blows his load in my mouth.